Battery Sensor

Description and Operation

Description

Vehicles have many control units that consume large amounts of electrical power. These control units perform their functions based on data from various sensors. A stable power supply is extremely important for the sensors to record this data. The battery sensor (A) is installed on the negative (-) battery terminal cable assembly. It sends battery voltage, current, and temperature data to the ECM, which uses these signals to control the charging duty cycle.

repair procedures

expansion

1. 1

   Turn the ignition off.

2. 2

   Disconnect the negative (-) battery terminal (A).

   Battery negative (-) terminal clamp nut:

   4,0~6 N·m

   

3. 3

   Disconnect the battery sensor connector (A).

   

4. 4

   Remove the battery sensor by loosening the mounting screws (B).

   Battery sensor cable mounting screw (body ground):

   10,8~13.7 N·m

   

   

Installation

1. Installation is the reverse of removal.

Battery Sensor Recalibration

After reconnecting the negative battery cable, the AMS function will operate again only after the system has stabilized (approximately 4 hours). If the negative battery terminal (-) was disconnected during repair work on a vehicle equipped with ISG, the battery sensor must be recalibrated after the repair work is completed.

1. 1

   Turn the ignition switch ON and OFF.

2. 2

   Leave the vehicle for approximately 4 hours with the hood and all doors closed.